Energy storage power source



FIG. 1 is a front perspective view of an energy storage power source;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left-side view thereof;

FIG. 6 is a right-side view thereof;

FIG. 7 is a top view thereof;

FIG. 8 is a bottom view thereof;

FIG. 9 is an enlarged detail view showing a portion of the design as indicated in the area ‘9’ in FIG. 1;

FIG. 10 is an enlarged detail view showing a portion of the design as indicated in the area ‘10’ in FIG. 2; and,

FIG. 11 is an enlarged detail view showing a portion of the design as indicated in the area ‘11’ in FIG. 5.

The broken lines depict portions of the energy storage power source in which the design is embodied that form no part of the claimed design. 

CLAIM I claim the ornamental design for an energy storage power source, as shown and described. 